linux-kernel - [PATCH 4/4] arm64: dts: qcom: sa8775p: pmic: add the sdam

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Date:   Thu, 13 Apr 2023 15:17:05 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Sebastian Reichel <sre@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>
Cc:     linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Parikshit Pareek <quic_ppareek@...cinc.com>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 4/4] arm64: dts: qcom: sa8775p: pmic: add the sdam_0 node

From: Parikshit Pareek <quic_ppareek@...cinc.com>

Introduce sdam_0 node, which is to be used via nvmem for power on
reasons during reboot. Add supported PoN reaons supported via sdam_0
node.

Signed-off-by: Parikshit Pareek <quic_ppareek@...cinc.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi b/arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi
index 5abdc239d3a6..49bf7b08f5b6 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi
+++ b/arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi
@@ -88,6 +88,14 @@ trip1 {
 			};
 		};
 	};
+
+	reboot_reason {
+		compatible = "nvmem-reboot-mode";
+		nvmem-cells = <&reboot_reason>;
+		nvmem-cell-names = "reboot-mode";
+		mode-recovery = <0x01>;
+		mode-bootloader = <0x02>;
+	};
 };
 
 &spmi_bus {
@@ -133,6 +141,19 @@ pmm8654au_0_gpios: gpio@...0 {
 			interrupt-controller;
 			#interrupt-cells = <2>;
 		};
+
+		pmm8654au_0_sdam_0: nvram@...0 {
+			compatible = "qcom,spmi-sdam";
+			reg = <0x7100>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0x7100 0x100>;
+
+			reboot_reason: reboot-reason@48 {
+				reg = <0x48 0x1>;
+				bits = <1 7>;
+			};
+		};
 	};
 
 	pmm8654au_1: pmic@2 {
-- 
2.37.2